Shoot system of V. vinifera•Juvenile(derived from a seed) – it has no tendrils and the phyllotaxy is 2/5 (the angle between successive leaves is ~ 145°[spiral]). This phase is short lived – it will last no more that 10 - 15 nodes. The shoot will then revert to the adult form.

Shoot system of V. vinifera•Adult– this form of shoot is representative of all other shoots. There are discontinuous tendrils and the phyllotaxy is distichous (the angle between successive leaves is 180°, i.e. the leaves are opposite to one another [bilaterally symmetrical]). Under vegetative propagation the adult shoot morphology persists.

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Anatomy of main axis of shoot•Two components– barkand wood•Bark– contains the phloem: tissue involved in the translocation of carbohydrates, other organic molecules and water.•Wood– contains the xylem: tissue involved in the transport of water and also gives structure to the vine.

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